What is the difference between a class and an object in Java?

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In Java, classes and objects are fundamental concepts of object-oriented programming (OOP), and while they are closely related, they serve different purposes.

Class

A class is a blueprint or template for creating objects. It defines the structure and behavior (i.e., properties and methods) that the objects created from the class will have. Think of a class as a design plan.

Object

An object is an instance of a class. When a class is instantiated using the new keyword, it creates an object with its own memory and values for the properties defined in the class.

Example Analogy

  • Class: Think of a class like an architectural blueprint of a house.

  • Object: The actual house built from the blueprint is the object.

In summary, a class defines the structure and behavior, while an object is the real-world instance that uses that structure and behavior.

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